@doctoralThesis{Alfaro Rangel_2021,
title={Corneal Transplantation under Difficult Conditions : Clinical Pictures, Indications, Technique and Results.},
author={Alfaro Rangel, Raul},
doi={http://dx.doi.org/10.22028/D291-35868},
adress={Homburg/Saar},
year={2021}
}